[Notifications] Restore fallback to local URL when no place is found

This got removed in d82513ce88 as I thought a user would
always have a "Root" entry, leading to "Root/foo" paths.

However, if you hide a place, it will naturally not be considered for `closestItem`
resulting in the final `QUrl::toDisplayString` being hit, giving us a not so
nice `file:///` URL.

libnotificationmanager/job_p.cpp

@@ -28,11 +28,11 @@
 
 #include <KFilePlacesModel>
 #include <KService>
+#include <KShell>
 #include <KLocalizedString>
 
 #include <kio/global.h>
 
-
 #include "jobviewv2adaptor.h"
 #include "jobviewv3adaptor.h"
 
@@ -121,6 +121,10 @@ QString JobPrivate::prettyDestUrl() const
         return text;
     }
 
+    if (url.isLocalFile()) {
+        return KShell::tildeCollapse(url.toLocalFile());
+    }
+
     return url.toDisplayString(QUrl::RemoveUserInfo);
 }